大岗山水电站工程拱坝施工温控措施动态仿真平台的设计与实现

发布时间：2018-02-04 00:02

本文关键词： 水电建设温度控制仿真软件设计　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：大岗山水电站位于四川省雅安市石棉县境内,是大渡河干流水电规划的第14级电站。电站采用坝式开发,其建筑物主要由挡水建筑物、消能建筑物、发电装置等等所构成,最大坝高210米,该工程的主要特点为:地质条件复杂、地震设防烈度高、为我国目前在建的地震设防烈度最高的拱坝。大岗山水电站混凝土拱坝最大坝高210m,其坝体混凝土方量约330万m3。大坝混凝土因水化热的影响而出现温度的升高、降低的不断变化。但是,由于温度的不断变化对混凝土将产生极大的影响,一旦对其的监控存在疏忽,极可能造成混凝土的裂缝、甚至是断裂。这既影响到了水电站的整体美观问题,也无法保障水利工程的安全性,更无法使其在预设的使用时间正常的生产运营。通过开展施工温控措施及施工仿真研究,全面掌握温度的相关情况,并对所收集的温度的相关数据进行研判,制定行之有效的、具有可操作性的应对方案和解决预案,以更好的保障大坝混凝土的质量和安全性,以避免出川任何可能影响水利工程整体质量、生产运营的状况发生。另外,根据所收集的温度的数据情况,还应当作出对大岗山拱坝混凝土的整体安全情况进行科学的分析,并作出安全性研究与评价。通常的调温措施与施工仿真研究,主要侧重于理论计算与研究,如何将仿真计算与工程实际情况相结合不是其重点考虑内容。这样带来的困难主要体现在以下几个方面:首先,仿真计算的边界条件不能及时全面从现场一线获取,存在偏差与滞后,无法做到实施跟踪;其次,仿真计算的结果主要使用PPT或文档报告的资料发布,不能及时、全面地发布与共享,指导施工生产。本项目建立的温控措施与施工仿真平台,就是要将有限元仿真计算的理论成果与现场的施工生产紧密结合,将科研与生产相集成,实现计算分析、现场生产、实施监控与动态反馈的温控全过程闭环管理,实现个性化、精细化的温控管理,保证工程施工质量与运行期的安全。
[Abstract]:Dagangshan Hydropower Station, located in Shimian County, Ya'an City, Sichuan Province, is the 14th grade hydropower station in the Dadu River main stream hydropower planning. The dam type is used for the development of the power station, the buildings of which are mainly water retaining structures and energy dissipation buildings. The maximum dam height is 210 meters. The main features of the project are complex geological conditions and high seismic fortification intensity. The maximum height of concrete arch dam of Dagangshan Hydropower Station is 210 m. The concrete volume of dam body is about 3.3 million m3. Due to the effect of hydration heat, the temperature of dam concrete increases and decreases continuously. However, the continuous change of temperature will have a great impact on the concrete. Once there is negligence in monitoring it, it may lead to cracks or even fracture of concrete, which not only affects the overall aesthetic problems of hydropower stations, but also can not guarantee the safety of water conservancy projects. Through the construction temperature control measures and construction simulation research, fully grasp the temperature of the relevant situation, and collect the temperature of the relevant data to study. In order to ensure the quality and safety of dam concrete, to avoid any possible impact on the overall quality of water conservancy project, we should formulate effective and operable solutions and solutions. In addition, according to the collected temperature data, we should make a scientific analysis of the overall safety of the concrete of Dagangshan Arch Dam. And make safety research and evaluation. The usual temperature regulation measures and construction simulation research, mainly focus on theoretical calculation and research. How to combine the simulation calculation with the actual engineering situation is not the focus of its consideration. The difficulties brought by this are mainly reflected in the following aspects: first of all. The boundary conditions of the simulation can not be obtained from the field in time, there is deviation and lag, and the implementation of tracking can not be achieved. Secondly, the results of simulation calculation mainly use PPT or document report of the information release, can not timely, comprehensive release and sharing, guide construction production. This project established temperature control measures and construction simulation platform. It is necessary to combine the theoretical results of finite element simulation with the construction and production of the site, integrate scientific research and production, and realize calculation and analysis, and field production. The closed-loop management of the whole process of temperature control with monitoring and dynamic feedback is carried out to realize the individualized and fine temperature control management and to ensure the safety of the construction quality and the running period of the project.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV642.4;TP391.9

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